WO2006031651A1 - Cartouche filtrante de carburant et capuchon d'extremite clavete - Google Patents

Cartouche filtrante de carburant et capuchon d'extremite clavete Download PDF

Info

Publication number
WO2006031651A1
WO2006031651A1 PCT/US2005/032188 US2005032188W WO2006031651A1 WO 2006031651 A1 WO2006031651 A1 WO 2006031651A1 US 2005032188 W US2005032188 W US 2005032188W WO 2006031651 A1 WO2006031651 A1 WO 2006031651A1
Authority
WO
WIPO (PCT)
Prior art keywords
end cap
keys
fuel filter
central opening
bottom wall
Prior art date
Application number
PCT/US2005/032188
Other languages
English (en)
Inventor
Thomas C. Richmond
Steven M. Todd
Kenneth W. Stirn
Original Assignee
Baldwin Filters, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=35502434&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2006031651(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Baldwin Filters, Inc. filed Critical Baldwin Filters, Inc.
Priority to EP05796601A priority Critical patent/EP1817093B1/fr
Priority to AT05796601T priority patent/ATE542586T1/de
Priority to MX2007002947A priority patent/MX2007002947A/es
Priority to CA2579195A priority patent/CA2579195C/fr
Publication of WO2006031651A1 publication Critical patent/WO2006031651A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/153—Anti-leakage or anti-return valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/29—Filter cartridge constructions
    • B01D2201/291—End caps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/40—Special measures for connecting different parts of the filter
    • B01D2201/4046—Means for avoiding false mounting of different parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/40—Special measures for connecting different parts of the filter
    • B01D2201/4084—Snap or Seeger ring connecting means

Definitions

  • the present invention generally relates to filters and their components and more particularly relates to filter cartridges and end caps therefore which are configured to engage flow control valves in filter housings.
  • the present invention relates to keyed fuel filter cartridges for a fuel filter housing which has a keyed latch shut-off valve as shown for example in U.S. Patent Nos. 6,495,042 and 6,550,000, the entire disclosures of which are hereby incorporated by reference.
  • stepped keys are provided in a recess formed in the bottom end cap of a fuel filter cartridge.
  • Each of the stepped keys includes a valve actuation portion and a latch actuation portion, whereby the keys are used to unlock a latched device and move a valve element and uncover a fuel flow port in a standpipe of a valve housing.
  • the present invention relates to a fuel filter cartridge and end cap which may be used and applied to such fuel filter housings as disclosed in the '042 and 1 OOO patents referenced above, or that may have other application.
  • the fuel filter includes a tube of filter media surrounding a longitudinal axis.
  • a first end cap is placed on the first end of the tube of filtering media.
  • the first end cap defines a first annular trough that is filled with potting compound to connect and seal the first end cap to the tube of filtering media.
  • the first end cap defines a first central opening surrounding the longitudinal axis.
  • a second end cap is located on the second end of the tube of filtering media.
  • the second end cap includes an outer annular skirt portion, an inner annular skirt port and a disc portion therebetween.
  • Another aspect of the present invention is directed toward an end cap for such a fuel filter cartridge.
  • the end cap includes an outer annular skirt portion, an inner annular skirt portion and a disc portion therebetween.
  • An annular trough is formed along the disc portion between the skirt portions on an underside of the end cap.
  • a central opening is formed into the disc portion and surrounds the longitudinal axis.
  • a plurality of keys are located on the disc portion and project axially from the disc portion. These keys are arranged in an annular array which surrounds the axis.
  • a fuel filter comprises a tube of filtering media and first and second end caps placed upon opposing ends of the tube of filtering media.
  • One of the end caps includes a cylindrical recess structure. Located in the recess structure is a first plurality of keys which project in the recess in an annular array and a second plurality of keys projecting in the recess in an annular array which are of a different characteristic than the first plurality of keys.
  • FIG. 1 is a cross-section of a fuel filter cartridge in accordance with a first embodiment of the present invention.
  • FIG. 2 is a cross-section of the bottom end cap portion of the fuel filter cartridge shown in FIG. 1 as installed on a standpipe in a fuel filter housing and engaging a latch and valve mechanism therein.
  • FIG. 3 is an isometric view of the bottom end cap of the fuel filter cartridge of FIG. 1.
  • FIG. 4 is a view similar to FIG. 3, but with the end cap cut in half.
  • FIG. 5 is a bottom end view of the bottom end cap for the fuel filter of the first embodiment shown in FIG. 1.
  • FIG. 6 is a cross-section of FIG. 5 taken about line 6-6.
  • FIGS. 7 and 8 are enlarged views of different portions of FIG. 6.
  • FIG. 9 is a view of a bottom end cap of a second embodiment of the present invention for a fuel filter cartridge.
  • FIG. 10 is a view of the end cap of the second embodiment as mounted on a filter cartridge.
  • FIG. 11 is a plan bottom view of the second embodiment of the end cap shown in FIG. 9.
  • FIG. 12 is a cross-section of FIG. 11 taken about line 12-12.
  • FIGS. 13 and 14 are enlarged views of different portions of FIG. 12.
  • FIG. 15 is an isometric view of a third embodiment of the end cap which may be used on a filter cartridge.
  • FIG. 16 is a view of the third embodiment of the end cap shown in FIG. 15 as mounted on a fuel filter cartridge.
  • FIG. 17 is a bottom plan view of the end cap according to the third embodiment shown in FIG. 15.
  • FIG. 18 is a cross-section of the end cap shown in FIG. 17.
  • FIG. 19 is an enlarged view of a portion of FIG. 18.
  • FIGS. 20 and 21 are isometric views of a bottom end cap for use in a fuel filter cartridge according to a fourth embodiment in which FIGS. 20 and 21 show different perspectives of the bottom end cap.
  • FIG. 22 is a plan view of an inward side of the bottom end cap of the fourth embodiment shown in FIGS. 20 and 21.
  • FIG. 23 is a cross-section of the end cap shown in FIG. 22.
  • FIGS. 24 and 25 are enlarged portions of different segments of the cross-section shown in FIG. 23.
  • FIG. 26 is a view of the end cap of the fourth embodiment as mounted on a filter cartridge.
  • the invention is embodied in a fuel filter cartridge 10 as shown in FIG. 1 which is removably installed into a fuel filter housing 12, the relevant portions of which are shown in FIG. 2.
  • This housing 12 depicts an exemplary environment in which the fuel filter cartridge 10 will operate.
  • the fuel filter housing includes a container 14 into which the fuel filter cartridge 10 is axially inserted along a longitudinal axis 16 (longitudinal axis 16 also designates the central axis for the fuel filter cartridge 10).
  • a fuel standpipe 18 Concentric and co-axial with the longitudinal axis is a fuel standpipe 18 which carries a spring loaded latch device 20 in the form of a sleeve and a flow control valve 22 which opens and closes a fuel flow port 24 that extends radially through the standpipe 18.
  • a spring loaded latch device 20 in the form of a sleeve
  • a flow control valve 22 which opens and closes a fuel flow port 24 that extends radially through the standpipe 18.
  • FIG. 2 different halves of the longitudinal axis 16 depict different engagement positions at different stages of axial insertion of the fuel filter cartridge 10 into the fuel filter housing 12.
  • the fuel filter cartridge 10 will first engage the latch device 20 and then subsequently engage the valve 22 to uncover the flow port to allow for fuel flow from the central region of the fuel filter cartridge 10 into the standpipe 18. Further details of such a fuel filter housing and standpipe can be had to the referenced patents set forth in the background above.
  • the fuel filter cartridge 10 generally includes a cylindrical tube of filtering media 30 that is concentric around the longitudinal axis 16.
  • the tube of filtering media 30 may comprise a cylindrical ring of pleated filter paper, or may comprise other suitable filtering media.
  • a perforated metal or plastic central support tube 32 may be provided concentrically inside the filtering media 30 to provide for radial support to the filtering media 30.
  • the support tube 32 provides support for the media 30 when fuel is flowing radially inward through the filtering media 30.
  • top end cap 34 At the top end of the filter cartridge 10 with the given orientation shown in FIG. 1 , there is a top end cap 34.
  • the top end cap 34 defines an annular trough 36 along the underside thereof.
  • the annular trough 36 that receives potting compound 38 (such as plastisol, adhesive or other suitable bonding agent) which connects and seals the top end cap 34 to the top end of the filtering media 30.
  • the top end cap 34 defines a central opening 40 which is sized to receive the standpipe 18 therethrough.
  • the top end cap 34 carries an annular gasket 42 which engages and seals against the standpipe 18 shown in FIG. 2 when installed into the fuel filter housing 12.
  • a collapsible handle 44 may also be mounted to the top end cap 34 to provide a means for ready removal of the fuel filter cartridge at filter change interval time. The handle 44 can be pulled to facilitate removal of the fuel filter cartridge.
  • the bottom end cap 50 may be comprised of two separate component plastic parts including a generally plate-shaped member 52 and a generally ring-shaped member 54 which are assembled together as shown.
  • One method for assembling the two members 52 and 54 together is a snap-lock connection in which snap tabs 56 projecting from one of the members 54 is snapped onto corresponding structure on the other member 52 to form the bottom end cap 50.
  • the bottom end cap 50 once assembled includes an outer annular skirt 58, an inner skirt 60 and a generally planar disc portion 62 therebetween.
  • the combination of these structural portions provides an annular trough 64 which is received onto the bottom end of the filtering media 30 and connected and sealed thereto by potting compound 66.
  • the inner periphery of the disc portion 62 defines a central opening 68 which may be recessed into the filtering media 30 as indicted via the inner skirt 60.
  • the inner skirt 60 extends axially inward and terminates in a radially inward extending bottom wall 70 to form a generally cylindrical recess 72.
  • the bottom wall 70 is generally planar in nature and extends radially inward toward a further central opening 74 that is of a smaller diameter than the outer central opening 68.
  • the bottom wall 70 in this embodiment is used as the valve actuation means as shown in FIG. 2.
  • a loop structure or lip 76 Surrounding the central opening 74 is a loop structure or lip 76 which is configured to slidably engage the standpipe and provides for some flexibility to allow for easier axial installation and location features.
  • the lip 76 which extends axially also flexes slightly inwardly and outwardly radially relative to the standpipe.
  • the bottom end cap 50 also provides means for engaging the latch device which is shown in the form of an annular array of keys 82.
  • the keys 82 are not located in the recess 72 but are located on the disc portion 62 and project axially from the disc portion 62 in an outward direction, which is away from the filtering media 30.
  • the keys 82 are arranged in an annular array which surrounds the central longitudinal axis 16. [0036] As shown in the figures, the keys 82 project radially inward past the outer central opening 68 in a cantilever manner such that gaps 84 are formed between adjacent keys to provide suitable clearance for use with the associated standpipe and valve/latch mechanism. The keys are arranged and spaced to provide means for releasing the latch device 20 of the flow control valve 22 in the filter housing. The keys 82 are configured and spaced relative to the valve actuating bottom wall 70 so as to compliment the configuration of the latch device 20 and valve 22 of the fuel filter housing. To achieve this, the keys 82 only extend partially radially inward and short of the diameter of the inner central opening 74.
  • the keys 82 may have an outer surface 88 which is relatively straight in the radial direction.
  • the keys 82 may also be elevated slightly by a raised annular plateau portion 90 which is formed into the disc portion 62 of the plate-shaped member 52. This raised plateau portion 90 also provides along the inward side a recess area to receive a radial projection of the ring-shaped member 54 and thereby provide a flat underside surface for the annular trough 64 to better ensure connection and sealing between the bottom end cap 50 and the filtering media 30 via the potting compound 66. [0037] Turning to the second embodiment of the present invention shown in FIGS.
  • a disposable fuel filter cartridge 110 is illustrated which will be understood to be similar in most material respects to FIG. 1 , with the primary exception being the configuration and keying mechanism of the bottom end cap 112. Accordingly, focus as applied to this embodiment will be directed to the principle distinctions.
  • the bottom end cap 112 still includes keys 1 14 which project from the disc portion 1 16 of the bottom end cap 112. Similar to the first embodiment, the keys 114 avoid and are clear of the recess structure 118 formed into the bottom end cap 112. However, as opposed to the first embodiment where the bottom wall of the recess provides the valve actuation means, in this embodiment the keys 114 themselves provide for both the latch actuation means and the valve actuation means.
  • the keys 114 are stepped to include a first latch actuation surface 120 and a second valve actuation surface 122. These surfaces 120, 122 are both axially and radially spaced with a configuration and spacing that is complimentary to that of the latch device and valve of a corresponding fuel filter housing.
  • the fuel filter cartridge 210 of the third embodiment is much like the earlier two embodiments with a principle distinction being the configuration and shape of the bottom end cap 212.
  • the bottom end cap 212 may be formed of a single unitary member rather than two component part members which are assembled together.
  • this embodiment eliminates the recess structure of prior embodiments and instead the keys 214 are formed on the outer face or disc portion 216 of the bottom end cap projecting axially outward therefrom (in a direction away from the filtering media). Similar to the second embodiment, these keys 214 also include a stepped surface to include a latch actuation surface 120 and a valve actuation surface 122 which are both radially and axially spaced relative to each other. A potential advantage of an embodiment like this is that the inner diameter of the filtering media may be moved inwardly if desired (e.g. the inner diameter of the filtering media may be smaller). [0039] A fourth embodiment of a fuel filter cartridge 310 is shown in FIGS.
  • one set of the keys 314 are used to engage and unlock the latch device while the other set of keys 316 are used to actuate the valve and thereby open the flow port.
  • the two sets of keys 314 and 316 are arranged in a common circular array.
  • the keys 314, 316 of this embodiment are not cantilevered with the support only along one side, but instead supported along two different sides of each of the keys including a first side connected to the inner annular skirt and a second side connected to the bottom wall.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne une cartouche filtrante comprenant un capuchon d'extrémité claveté configuré et mis en forme afin de déverrouiller un mécanisme de soupape associé qui comprend un dispositif de verrou et une soupape. De ce fait, lorsqu'elle est placée dans le carter de filtre de carburant comprenant ledit mécanisme de verrou et de soupape, la cartouche filtrante fonctionne afin de filtrer un fluide et de faire passer ce fluide dans un tuyau vertical placé dans le carter de filtre de carburant. Une cartouche de filtre de carburant de ce type comprend généralement un papier filtrant plissé qui est disposé entre les deux capuchons d'extrémité. Des clés peuvent être prévues sur le capuchon d'extrémité inférieur.
PCT/US2005/032188 2004-09-13 2005-09-08 Cartouche filtrante de carburant et capuchon d'extremite clavete WO2006031651A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP05796601A EP1817093B1 (fr) 2004-09-13 2005-09-08 Dispositif de filtration de carburant
AT05796601T ATE542586T1 (de) 2004-09-13 2005-09-08 Filtervorrichtung für kraftstoff
MX2007002947A MX2007002947A (es) 2004-09-13 2005-09-08 Cartucho de filtro de combustible y tapa de extremo trabada.
CA2579195A CA2579195C (fr) 2004-09-13 2005-09-08 Cartouche filtrante de carburant et capuchon d'extremite clavete

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/940,002 US7326342B2 (en) 2004-09-13 2004-09-13 Fuel filter cartridge and keyed end cap
US10/940,002 2004-09-13

Publications (1)

Publication Number Publication Date
WO2006031651A1 true WO2006031651A1 (fr) 2006-03-23

Family

ID=35502434

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/032188 WO2006031651A1 (fr) 2004-09-13 2005-09-08 Cartouche filtrante de carburant et capuchon d'extremite clavete

Country Status (6)

Country Link
US (3) US7326342B2 (fr)
EP (1) EP1817093B1 (fr)
AT (1) ATE542586T1 (fr)
CA (1) CA2579195C (fr)
MX (1) MX2007002947A (fr)
WO (1) WO2006031651A1 (fr)

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MX2007002947A (es) 2007-05-07
EP1817093A1 (fr) 2007-08-15
US20060054547A1 (en) 2006-03-16
EP1817093B1 (fr) 2012-01-25
ATE542586T1 (de) 2012-02-15
CA2579195A1 (fr) 2006-03-23
US8628663B2 (en) 2014-01-14
US7326342B2 (en) 2008-02-05
CA2579195C (fr) 2013-01-08
US8197686B2 (en) 2012-06-12
US20080073262A1 (en) 2008-03-27
US20120223003A1 (en) 2012-09-06

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